Strap buckle assembly



FIG. 1 is a top plan view of the strap buckle assembly showing my design.

FIG. 2 is a side elevation view thereof, an opposite side view being identical;

FIG. 3 is an upper perspective view thereof; and,

FIG. 4 is another upper perspective view thereof, showing an extended position of the strap.

The broken lines are presented for illustrative purposes to indicate continuing length of the strap of the design. 

The ornamental design for a strap buckle assembly, as shown and described. 